From: Marek Vasut <marek.vasut@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] mx28: Saving env vars on MMC
Date: Fri, 25 Nov 2011 14:42:45 +0100 [thread overview]
Message-ID: <201111251442.46074.marek.vasut@gmail.com> (raw)
In-Reply-To: <CAOMZO5B5r4z_h6O_jUKJ4kTUUaRo90qsBzh9nfMHZuDPwdntWA@mail.gmail.com>
> On Fri, Nov 25, 2011 at 6:13 AM, Marek Vasut <marek.vasut@gmail.com> wrote:
> > You have to be careful on the imx28 about the following:
> >
> > 1) sector 0 / first 512 bytes : That's where MBR is
> > 2) sector 2048 + ... : That's where U-Boot is located
> >
> > But it's strange, there's about 1MB of space between MBR and U-Boot ...
> > can you actually check the first 2MB of the card and run binary diff on
> > the good and bad card ? That way you'll see what changed.
>
> What I see is that when I do a 'save' the env variables are written to
> 0 and this causes the boot to fail.
>
> Has the mxsmmc driver been tested?
Definitelly, yes. Do you want to look into it or shall I do that ?
Now it might be worth trying to trace if there's a problem in the env_mmc (aka.
who introduces the 0)
M
next prev parent reply other threads:[~2011-11-25 13:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-25 2:05 [U-Boot] mx28: Saving env vars on MMC Fabio Estevam
2011-11-25 7:12 ` Stefano Babic
2011-11-25 8:13 ` Marek Vasut
2011-11-25 13:20 ` Fabio Estevam
2011-11-25 13:42 ` Marek Vasut [this message]
2011-11-25 14:30 ` Marek Vasut
2011-11-25 15:06 ` Fabio Estevam
2011-11-25 15:13 ` Marek Vasut
2011-11-26 21:33 ` Fabio Estevam
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